She should know.
That is Mrs. Petal Patterjohngleeseriffraff, a widowed housewife in Mayonnaise, Nebraska. While she and Jibbers were still married on October 31, 1905, they opened their doors to a collection of seemingly innocent trick-or-treaters. As was the tradition of the day, they gave the group of 13 some hard cabbage-slaw candy dipped in chocolate.
Little did the couple know, the band was actually a group of marauders intent on taking over the United States, one house at a time. The band forced themselves into the home, piled the couple's furniture in the middle of their home and set it on fire with the intent of calling forth Cthulhu.
Unfortunately for the couple, the group misspoke a couple of the phrases, accidentally calling forth the futuristic cyborg Dick Cheney, who proceeded to urinate on their dog and imprison three of their cows on the grounds that they kept shitting on the United States of America, a crime punishable by death in the Cheney act of 2021. As the cyborg attempted to carry out the execution, it accidentally set off a spell which caused all birthday cake icing around the world to be turned into mutton nine months later.
One of those celebrating a birthday, his 12th, was a youngster named Gavrilo Prinicip, who had received the cake from his friend, Franz. Upon tasting the foul icing, Prinicp vowed eternal revenge on Franz, whom he once considered a close friend.
And, the rest, as they say, is history.